Fur knife



April 23, 1940.

D. L. GQRBATENKO Er AL 2,198,111

FUR KNIFE Filed Nov. l, 1938 'fl/[genes:

1N VEN TORS. D/M/ m/ L. Goes/4 rE/v/o LLGOE WER BY QM 772 9251?@ ATTORNY Patented Apr. 23, 1940 Dimitri L. 'Gorbatenko and Albert J.,Allgoewer,San Francisco, Calif., assigner-s .to Dimgor Corp., San Francisco,Calif., a cor-poration of California Application November 1, `193s,serial No. 238,182 v.

s claims. (o1.v 311-162) This invention relates to knives and particu.-larly knives such asr are used in the furriers art in the cutting andtrimming of pelts.

It is an object-of this invention to provide a furriers knife which willfacilitate the cutting and preparation of furs; to provide a knife whichis extremely compact and relatively inexpensive to manufacture; toprovide a furriers knife which has, in combination, facilities forpreliminary marking of the `pelts in preparation for cuttingof the same,and which includes the desirable factorsof safety.

AThese and.. other objects will become more apparent 4as thisspecification proceeds and the novelty thereof' will be particularlypointed out in the appended claims.

The `objects hereinbefore referred to are achieved through the provisionof a knife having a thin handle portion, shaped to fit the hand, andinto which the blade is retractable when not 'in use as a safetyprecaution. Additionally, provision is made for the marking of the peltsby providing 'an extremely thin edge at one portion of the handlememberto be used in marking by iin-pression. andby the provision of apivotal Vretainer means in one end of the knife for a marking mediumsuch as, for example, chalk.

'. In the drawing forming. a part hereof:

Figure l is a perspective View of the knife forming the subject matterhereof, with the blade'thereof in projected position.

Figure 2 is a' longitudinal section of the knife shown in Figure 1, .n

Figure 3 is a cross-section taken along the line 3 3 of `Figure 2,

Figure 4 is a cross-section taken along the line 4 4 of Figure 2,

Figure 5 is a longitudinal section of the knife, similar to Figure 2,but showing the blade in its retracted position and the pivotal chalkretainer member swung outwardly,

Figure 6 is a sectional plan view taken along the line 6-6 of Figure 2,

Figure 7 is a perspective View of the blade carrier, and

Figure 8 is a perspective view of the preferred form of blade.

The numeral I0 designates a relatively thin knife handle having arelatively deep end portion Il which tapers away to a narrower endportion l2, the purpose of this being to provide a handle which isreadily adaptable to the grip. The handle member I0 has a longitudinallyextending recess I3 therein in which a blade carrier I4 is slidablyreceived. The recess I3, it will be noted,

l. is open at one end furriers g ef the handle member lq and is reducedto form. a bore at itsopposite end, as at I5, to yreceive pin `It onblade carrier Iii.y The depth o-f the recess I3 is such thatit willconceal a blade I8 when the carrier member I4 is drawn i rearwardly tosubstantially the end of the enlarged portionof the recess I3.

f It will be noted from Figures 2,5 and 6 that a helical spring memberis disposed in the reduced portion of recess I3 and surrounds the pin It'of blade `carrier I4, and normally urgesk blade vcarrier I4 into itsoutermost position (see Fig.v 2) -fprojecting the blade I8.

The blade carrier isnotched-as at 22 at its outer end (see Figurel'l)and is adapted to be,-

,engaged lby the toe 2l of the latch y23 and` thereby klocked in itsinnermost position (see Figure 5).

Latch 23 is disposed in an aperture 24 in top of handle Vmember I0,being Iattached for pivotal movement therein, and has a thumb piece 25projecting out of the handle and avtoe 21 engaging the notch 22 in bladecarrier I4. A flat spring 26 disposed in the handle member above therecess I3 bears against and normally urges the toe 2l of latch`23downwardly for engagement with v the notch 22 ofthe blade carrier I4when the latter is in its' innermost position (see Figure 5).

To limitthe outward movement of carrierA I4 andiacilitate the retractionofthe blade IB and its carrier I4 into the handle ID, we provide alongitudinally extending slot 30 in the side of the handle member I0through which projects the shank of the thumb screw 3l for engagement f'with carrier I4. vIt will be understood that while spring 20 causesblade I8 to be projectedupon release of latch 25, the blade and itscarrier must be manually retracted into the recess I3 by thumb screw 3|.

The particular construction of the blade carrier lli is illustratedtobest advantage in Figure 'I of the drawing. A plate 32 of rigidmaterial such as metal or the like, has a relatively thicker butt` end33 to which pin I6 is attached. The butt end 33 of carrier I4 has twoshoulder portions cut therein in the reduction of its size to thethickness of plate 32, the first of which is for the purpose ofproviding the surface for the attachment of the opposite plate 34 as bythe conventional rivets; the other shoulder portion defining alongitudinal blade receiving slot between the plates 32 and 34. y

Additionally, it will be noted that plate 32 has a pin 36 securedthereto and projecting4 at right angles through the aperture 3l in platemember 34, which pin serves to engage the blade I8 as .,10 accuratelydone.

In assembling the knife the carrier ls is s't inserted in recess I3, pinI6 of the carrier being centered in the helical springgllin recess I5.vThe carrier is manually held in this position andthe legs 38 and 39 ofbladet lareinserted in the slot 35 in the carrier I4, straddling pin 36.Thumb screw 3l is then insertedthrough slot 30 in the handle I0 andscrewed into plate 32 (see Figures 2, 4 and 6). As thumb screw 3| istightened it V.causes plates 32d` and3,4htok be drawn together for kthedesired clamping ofthe legs 38 and 39 of the blade I8, thus preventinglateral or Vertical play .ofV the blade `during normaluse.

, As 'willbe noted from Figs. 1, 2 and 5, the

vdeeper portion II of the handle I 0 is tapered at its forward endintona lip,46 projecting under lthe bottom edgeof the blade I8.' Thebottom edgeof blade I8 is received by a slot 4I in the said lip 40andthe bottomof the recess I3. T he purpose of. thisparticularlconstruction is to provide a thumb rest in close proximity to a cuttingedge of blade I8 which is desirable in certain vcutting operations.`Accordingly, all danger of Vthe pelts being caught between blade andhandle .are obviated. It will also be noted that the forward end of thetop of the handle, between ,thumb piece 25 of latch 23 and the topcutting edge of blade I8,-is streamlined as at 42,to prevent any`catching of the furs: in the cutting operation.

`As heretofore explained," the' furriers knife forming the subjectmatter tof [this invention is Qprovided with a pivotal retainer for amarking medium, ,such as chalk. ."The rear end of the `handle I Il'slotted as at 44 (see Figs. 5 and 6) to ,receive the retainer 45pivotally attached'therein as at 46, and having a marking medium,`suchas,achalk 41, clamped therein. The retainer 45 -is providedwith aprojecting ear 48 which extends lbeyond the slot 44 as a convenientmeans of swinging the same out Yof the handle for use of the markingmedium while in that position or ,for the replacement of the chalk.

The knife is also provided with means for marking by impression as willbe noted from the following: In cross-section (see Figs. 3 and 4) thehandle member I0, at its deepest portion II, is blade shaped, the bottomedge thereof coming to substantially a sharp edge 49. Under certaincircumstances it is undesirable to make any mark 5 of a permanent natureon the pelts and for this reason use of the :edge 4 9 in marking ,byimpression will be found highly desirable.A

From the foregoing it is believed clear that f we have provided afurriers knife which is highly l0 eicient for the purpose intended sinceit has all oithe necessary attributes such as are required byAonejskilled in; that particular art. While we have shown a preferredform of the invention, We wish it definitely understood that theprinciple of ll our invention may` take many other forms and. for thatreason we desire protection according to the full scope of the appendedclaims.

The invention claimed is:

, l. A furrierfs knife comprisingva ,handle, a n longitudinal `recesstherein extendingl rearwardly from the blade end,`abladecarrierslidablyre- 4ceived in sadkrecess,v ablade carried thereby,

yieldable means normally urging the carrier out of. the recess, a slot,in the handlejopening into u said recess, a thumb-screw in saidcarrierprojecting through said slot, a knotch in the V4 blade carrier, and atrigger having a'toe normally and yieldably urged inwardly forengagement with the notch in said carrier.

' 2.' A furriers knife comprising,VA `a handle, [a longitudinal recess.therein extendingrearwardly from the blade end and terminating in areduced bore at the opposite end, a blade carrier slidably received insaid recess and having a' pin received u by said bore, a helical springinthe bore encircling said pin and normally urging saidcarrier'out ofthe recess, a slot in the handle opening into said recess, a thumbpieoe'threadably engaging said Acarrier and' projecting through saidslot, a notch 40 in said carrier, and "a" trigger having a' toe normallyand yieldably urged inwardly' for engagenient with the notch insaidcarrier.

3. In a furriers knife, 'a handle having aA longitudinally extendingrecess therein, ablade ca`r- 45 rier slidablyl receivedv in said recess,'a blade carried thereby, said blade carrier comprising'a rigid piecehaving a shoulder at'one end, a flexible .piece attached to said'shoulder' and with s'aid rigid piece defining a blade receivingv slot,nand 50 ymeans for drawing the flexible' piecetowar'd the rigid piece.

DIMI'I'RI L; GORBA'FENKO. ALBER'I J. ALLGOEWER'.

